During wich process is ethanol produceda: lactic acid fermentationb: alcohol fermentation c: citric acid cycled: electron transport chain

Ethonal is produced during b. Alcohol fermentation that converst sugars into ethanol.

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).